Ratchet for stove-dampers



(No Model.)

D. W. ROLAND.

RATOHET FOR STOVE DAMPERS.

No. 389,109. Patented Sept. 4, 1888,

\ZXZ 1247555515 NITED STATES PATENT OFFICE.

DANIEL W. ROLAND, OF AKRON, OHIO.

RATCHET FOR STOVE-DAMPERS.

SPECIFICATION forming part of Letters Patent No. 389,109, dated September 4, 1888.

Application filed April 16, 1888. Serial No. 270.848.

T0 aZZ whom, it may concern.-

Be itknown that I, DANIEL W. ROLAND, of Akron, in the county of Summit and State of Ohio, haveinvented certain new and useful Improvements in Batchets for Stove-Dampers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in attachments for ratchets for stove-dampers; and the objects of my invention are to so construct the damper that an operating-handle can be attached to its end, and to use in connection with the damper either a movable ratchet and a pivoted pawl or a stationary ratchet and a movable pivoted pawl, as may be preferred, for the purpose of adjusting the damper into any desired position.

Figure l is a perspective of a stationary ratchet and a movable pivoted pawl. Fig. 2 is a plan view of the same. Fig. 3 is a perspective of a movable ratchet and a pivoted pawl. Fig. 4 is a side elevation of the same.

A represents the side of the stove, and B the bent end of the damper, which projects through it. Fastened to this end B of the damper is the handle 0, which projects outward in any suitable manner, and which has one end passed around the end B and clamped rigidly thereto by means of a set-screw, D. In order to prevent any possibility of the handle becoming loose and turning upon the end B, a rivet, F, is passed through both the handle and the end B, as shown. Formed upon this part of the handle which passes around the end B is a stud or projection, G, upon which feither a ratchet or the pawl may be fastened, according as it is desired to use a stationary ratchet and a movable pivoted pawl, or a movable ratchet and a pivoted pawl.

If a stationary ratchet, H, is to be used, as shown in Fig. 1, then the pawl I will be pivoted upon this stud or projection and adapted to be turned in either direction, according to the position in which the damper is to be turned. Each damper is provided with a set of teeth, J, which extend in one direction,

(No model.)

and a second set, L, which extend in the op posite direction, and the space 0 in between the two sets of teeth. Each ratchet is also provided with a hook, stop, or projection, P, upon each end, so as to limit the movement of the pawl in that direction, and thus prevent it from dropping below the ends of the ratchet. as would otherwise be the case when the end B was turned too far in that direction.

\Vhen the stationary ratchet is to be used, it is bolted to the side of the stove and will be made either right or left, as may be desired. The pawl being provided with two prongs or made double, and being adapted to turn freely upon the stud or projection from one side to the other, can be made to engage with either set of teeth, according to the position in which the damper is to be moved. By moving the pawl from one tooth to the other the ratchet or the damper can be adjusted into any desired position.

In case it is desired to use a movable ratchet, it is secured directly to the prong or projection upon the handle and fastened to the end of the damper, and thus made to move with the end of the damper and handle at all times in adjusting the damper. Where a movable ratchet is used, the pawl is pivoted to the side of the stove and has merely a pivoted movement, and nothing more. \Vhen the pawl is made to catch in the space between the two sets of teeth, the damper is about midway in its movement and will be held in this position. By raising the pawl the damper can be moved in either direction desired, so as to either open or close it, according to the draft desired for the stove.

Having thus described my invention, I claim 1. The combination of the stove, the bent end of the damper, and a handle secured thereto and provided with a stud or projection with a ratchet and pawl, the one located on the stud or projection and the other on the side of the stove, substantially as shown.

2. The combination of the bent end of the damper, a handle secured thereto and provided with a stud or projection, the ratchet provided with two sets of teeth, and the pawl which is pivoted upon the stud or projection and carried back and forth with the handle, substantially as described.

3. The combination of the end of the damper,

the handle secured thereto and provided 5 with a pawl or projection, with the pawl, the

ratchet provided with two sets of teeth, a \Vitnesscs:

space between the teeth, and hooks or stops J. F. \VRIGHT,

upon its ends, substantially as set forth. \V. OLOEGT.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL W. ROLAND, 

